CS4525-CNZ Cirrus Logic Inc, CS4525-CNZ Datasheet - Page 70

• Manufacturer Part Number: CS4525-CNZ
• Description: IC AMP AUDIO PWR 30W QUAD 48QFN
• Manufacturer: Cirrus Logic Inc
• Series: Popguard®r
• Type: Class Dr

Specifications of CS4525-CNZ

• Output Type: 2-Channel (Stereo) or 4-Channel (Quad)
• Package / Case: 48-QFN
• Max Output Power X Channels @ Load: 30W x 1 @ 4 Ohm; 15W x 2 @ 8 Ohm
• Voltage - Supply: 8 V ~ 18 V
• Features: ADC, Depop, I²C, I²S, Mute, PWM, Short-Circuit and Thermal Protection, Volume Control
• Mounting Type: Surface Mount
• Product: Class-D
• Output Power: 30 W
• Thd Plus Noise: 10 %
• Operating Supply Voltage: 2.5 V to 5 V
• Supply Current: 54 mA
• Maximum Power Dissipation: 180 mW
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Audio - Load Impedance: 4 Ohms, 6 Ohms, 8 Ohms
• Audio Load Resistance: 8 Ohms, 4 Ohms
• Minimum Operating Temperature: 0 C
• Supply Voltage (max): 5.25 V
• Supply Voltage (min): 2.375 V
• Amplifier Class: D
• No. Of Channels: 4
• Supply Voltage Range: 8V To 18V
• Load Impedance: 4ohm
• Operating Temperature Range: 0°C To +70°C
• Amplifier Case Style: QFN
• No. Of Pins: 48
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1586 - REFERENCE BOARD FOR CS4525 PWM
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 598-1264

70
9.1.4
9.1.5
9.1.6
9.1.7
HP_Detect/Mute Pin Active Logic Level (HP/MutePol)
Default = 0
Function:
This bit determines the active logic level for the HP_DETECT/MUTE input signal.
HP_Detect/Mute Pin Mode (HP/Mute)
Default = 0
Function:
Configures the function of HP_DETECT/MUTE input pin. See
Input” on page 51
Modulator Phase Shifting (PhaseShift)
Default = 0
Function:
When enabled, forces the output of the PWM modulator to output differential signals which are the inverse
of each other and have been phase shifted by 180 degrees. This causes, for instance, the differential sig-
nal pair to be exactly in phase with one another during a mute condition, thereby reducing the amount of
switching current through the load.
AM Frequency Shifting (FreqShift)
Default = 0
Function:
Controls the state of the PWM AM frequency shift feature. See
for more information.
HP/MutePol Setting
HP/Mute Setting
PhaseShift Setting
FreqShift Setting
0 .......................................... Active low.
1 .......................................... Active high.
0 .......................................... Mute input signal.
1 .......................................... Headphone detect input signal.
0 .......................................... 180º phase shift disabled.
1 .......................................... 180º phase shift enabled.
0 .......................................... Frequency shift disabled.
1 .......................................... Frequency shift enabled.
for more information.
Headphone Detect/Mute Input Polarity
HP_DETECT/MUTE Pin Function
Modulator Phase Shift State
AM Frequency Shift State
“Headphone Detection & Hardware Mute
“PWM AM Frequency Shift” on page 51
CS4525
DS726PP2